Posts by Samuel
Total # Posts: 326

physics
the movement of a couple of 100N but 2.5m apart is  #include <iostream> #include <cmath> using namespace std; int main () { int Length= 1, Weight= 2, Volume=3; int cm, m, km, mm2, m2, pt, qt, gal,g, kg; int Choice; long double inch= 2.54, yard= 0.9144, mile = 1.609344; long double ounce= 28.349523, pound= 0.453592, ...

Computer C++ Programing
Using the if… else if, write a menudriven program that permits the user to select one of the metric conversions: Lengths Weights Volumes Areas Use the following conversions: For Length: Inches to centimeter (1 inch = 2.54 cm) Yards to meters (1 yard = 0.9144 m) Miles to ... 
Programing
Using the if… else if, write a menudriven program that permits the user to select one of the metric conversions: Lengths Weights Volumes Areas Use the following conversions: For Length: Inches to centimeter (1 inch = 2.54 cm) Yards to meters (1 yard = 0.9144 m) Miles to ... 
math
the minute hand of a clock is 6cm long.how far does the end of the hand travel is 35minute  Thank you!
 Is the height 5.2 then?

Math
What is the height of an equilateral triangle with a side length of 6 
science
A 40W bulb is switched on. It burns out brighter when it was switched on than a short time later.What account for this change in brightness 
science
Two charged particles are 8.5cm apart .They moved and the force on each of them is found to be tripled .How far apart are they now 
math
Using the vertices: B(9,1), E(2,3), F(12, 2), G(1,4). Determine whether ?BEFG is a rhombus, a rectangle, or a square. List all that apply and show the steps 
math
Determine whether the figure with vertices R (2, 5); O( 1,3); M(3, 4); Y(6,2) is a parallelogram. Use the Distance and Slope Formulas.  I'm sorry I meant find A) Sum of the interior angles B) Measure of an interior angle C) Measure of an exterior angle. for those polygons

math
For the following regular polygons, find the following, round to the nearest tenth, if necessary. 1. 24gon 2. 30gon 3. Polygon with 40 sides 
Science
How is the equator similar to the prime meridian? 
math
Find the perimeter of the given triangle. Round your answer to the nearest tenth if necessary. ?BCH, if ?CBH ? ?FEH, ADEG is a parallelogram, BH = 4, HE = 7, EF = 25, and HF = 24. 
math
Find the equation of the line that passes through (2,4), (1,3) is it y=1/3x + 2 or y=1/3x+10/3 
math
A=P+Prt solve for t I don't know if it is either t= (ap)/pr or t=(1/r)+(A/Pr) or is it a completely different answer? Thank you in advance!!!  Never mind I think I understand thank you
 So I'm trying to find what y is?

Algebra
a. For the first company, express in words the amount the cab company charges per ride and per mile. Charge per ride: $3 per mile $0.50 b. Write an equation in slopeintercept, pointslope, or standard form. Explain why you chose the form you did. y=3+0.50? c. What do the ...  A hamburger stand sells hamburgers for $3.87. In one day, the stand made $433.44. How many hamburgers were sold?

Math
You write 5 1?2 pages of a report in 2 1/3 hours. What is the average number of pages you write per hour? 
Science
The two variables of interest in this lab are: "percent change in mass" of bag and "sucrose molarity" in the bag solution. On a graph of these two variables, which would be the independent variable, and which would be the dependent variable? 
Math
Show that if the diagonals of a quadrilateral are perpendicular, then its area is half the product of the diagonals. What kind of drawing do I do? And how doI solve this? Thank you! 
Arithmetic
A geometric series has a positive common ratio of r. The series has a sum to infinity of 9 and the sum of the first two terms is 5. Find the first four terms of the series. 
Arithmetic
The sum of three consecutive terms of a geometric progression is 42, and their product is 512. Find the three terms. 
math
Simplify each expression so that no negative exponents appear in the final result. Assume that all variables represent nonzero real numbers. 1. (12k^2(k^3)^4)/(6k^5) 2. (3rs^2)/(3^2r^2s^4) 
math
In a random sample of 200 students who were asked their favorite color, it was found that twenty more students liked blue than purple and eight fewer liked green than blue. Find the number of students who chose each color as their favorite. I posted this question earlier and ... 
math
Write a system of equations, three equations/three unknowns, that has (1, 2, 3) as the solution. for this can I just write any random coefficient and then put that as equal to 1,2 or 3? or if not what type of math would I use?  or would it be 3x+12?
 so, that would be 10.66666666666 then for x

math
In a random sample of 200 students who were asked their favorite color, it was found that twenty more students liked blue than purple and eight fewer liked green than blue. Find the number of students who chose each color as their favorite. 
Math
Of the students in a certain classroom, 9 are in the school play, 12 are in the orchestra, and 15 are in the choral group. If 5 students participate in exactly 2 of the 3 activities and all other students participate in only 1 activity. How many students are in the homerooooom? 
Math
I am 10years old my sister is 4years,in how many years shall i be twice as old as she will be? 
Social Studies
Victory at which Battle convinced the British to help the Americans? I'm thinking its the Battle of Saratoga 
Math
In a circle whose center is O, arc AB contaisn 100 degrees. Find the number of degrees i angle ABO? 
GEOGRAPHY
WHAT IS LONTIUDE 
maths
From point AandB on level ground,the angle of elevation of the top of a building are 25degree and 37degree respectively.if AB?57m,calculate,to the nearest metre,the distances of the top of the building from AandB if they are both on thesame side of the building.  Not 3yrs but 3hrs

statistics
a survey from teeneage research unlimited found that 30% of teenage consumers receive their spending money from parttime jobs. If 5 teenagers are selected at random, find the probability that at least 3 of them have part time jobs 
Algebra
1/3 of a number is added to 5. the result is one and half times the original number.find the number. 
further maths
given that p=i+j2k and q=2ij+2k.find two vectors m and n satisfying that m is perpendicular to p,n is parallel to p and m+n=q 
Surds
Write (2+3^1/2)^1/2 in the form root a plus root b ..and find a and b 
Math
Austin pays $1.50 per day for high speed internet after paying the equipment fee of $35.00. Identify the constant of proportionality that relates his internet charges (y) to the number of days (x) he has internet. 
physics
(1) a car travelling at a constant speed of 20ms1 overcomes a constant frictional resistance of 300N. What is the horse power of the engine? ( take 1h.p = 3/4 kw)  22cm

Physics
A tennis ball is thrown with a velocity of 30m/s at an angle of 60^ of the horizontal calculate the time,m/s,and the range  Thank you! Yes I need to narrow it down. This professor gets on my nerves.

English Beowulf
How did the culture of Beowulf view pride? Why? 
Physics
The density of copper is 9.8 kilograms per meter cube and the density of gold is 1.9 kilograms per meter cube. When two wires of these metals are held under the same tension, the wave speed in the gold is found to be half that in the copper wire. What is the ratio of the ... 
maths sirreiny help calculus
solve the differential equation (x^2xy+y^2)dyxydx=0 plz show me working  so what do i do from here now sir

calculus help me pllllllllllz
Find out what kind of improper integral is given below §dx/{x^4+4}....?,hence evaluate the integral with upper boundary=infinity lower boundary =0 i need help plz show me full work 
maths need help
the transverse of the conic:3x^2y^2+2y1=0 is ???  In a farm a man counted his goats and hens .In all he had 30 legs and 13 heads.how many goats are in the farm and how many hens are in the farm

science
A concave lens or focal lens 10cm produce an erect image 40cm from the lens .Determine the object distance and magnification. 
Probability
Find the probability that a committee of 10 people chosen from an organization consisting of 40 doctors and 35 dentists will include 3 doctors and 7 dentist. 40c10 + 35c10 not sure what to do after setting it up. Need help 
Chemistry
In the zinccopper cell, Zn(s)  Zn^+2(1M)  Cu^+2(1M)  Cu(s), which electrode is negative? Cu^+2 Cu(s) Zn(s)*** Zn^+2 
Chemistry
What is the oxidation half reaction for the following equation: Cr2O7^2 +Fe+2   > Cr^+3 + Fe^+3 Cr^+3   > Cr2O7^2 Fe^+2   > Fe^+3 Fe^+3   > Fe^+2 Cr2O7^2  > Cr^+3*** 
Chemistry
What is the reducing agent in the following reaction? 2K + S   > K2S K*** S K2S None of these 
physics
A piece of copper of mass 40 grams at 20 degrees Celsius is placed in a copper calorimeter of mass 60 grams containing 50 grams of water at 10 degrees Celsius .ignoring heat losses,what will be the final steady temperature after stirring?(specific heat capacity of copper and ... 
calculushelp.. .Me
if y=e^(kt)[Acosh(qt)+Bsinh(qt)] where A,B,q and k are constant show that d^2y/dt^2+2kdy/dt+(k^2q^2)y=0 step plz thanks 
expansion help
find the series of the expansion (1+(1/x^3)) help!!!! 
physic
Two forces of magnitude 4.ON ans 7.0N act on a small object b. The angle btw the direction along which the force is 50 degree.determine the magnitude *nd direction of d resultant force on d body b. 
physic
Two forces 5N and 10N act on a body in the direction due North and east respectively at an angle 75 degree. Calculate the resultant force of the inclined angle. 
chemistry
what will haprn if ammonium chloride solution is used to standardize potassium tetraoxamaganate VII solution instead of ammonium iron II sulphate 
calculus help
integrate:dx/(3x^35)^3 help plz show step  Sir it won,t solve it for me i tried it....i don,t even no how to use it...plz help me

calculus plz help me
integrate:dx/((x1)sqrt(x^22) plz show solution i plead 
Economics!
Suppose a chemical company is in a perfectly competitive industry and has a short run total cost curve of TC = q3 + 5q2 + 10q + 10 and a short run marginal cost of SMC = q2 + 10q + 10. At the price of 49, how many will be produced?  Use the demand curve to derive MR. NOTE: MR is always two times steeper than the demand curve if the equation is linear. Hence, MR=$50020Q. Use MC=MR 100=50020Q 20Q=400 Q=20 P=50010(20)=400. Profit per day= There's no AC so I can't locate it. In terms of tax. If it ...
 Profit maximizing can be achieved using this formula MC=MR. Differentiate TR to get MR= 500010Q Differentiate TC to get MC=6Q 500010Q=6Q >> Q=312.50 Use the Q to get TR and TC. To find total profit= TRTC.

math
calculate the volume of the solid when the composite of a cube of edge is 28cm and the square based pyramid of it height is 16cm 
math
p=5x3^n can you answer this  but i don't know how

math
make a table and graph each quadratic function. use integers from 3 to 3 inputs 1. y=x^2 2. y=2x^2 3. y=8x^2 4. x^2 + 2 
Probability
The letters in the word MATHEMATICS are arranged randomly. What is the probability that the first letter is E? Preview What is the probability that the first letter is M?  26*25*10*9*8*7*6*5*4= 393120000

Probability
A computer password is required to be 9 characters long. How many passwords are possible if the password requires 2 letter(s) followed by 7 digits (numbers 09), where no repetition of any letter or digit is allowed? 
english,maths,chem,phy,bio,agric,civic,etc
What are the equations of motion. 
life orientation
indetify three courses are interested after grade 12  mgh =1/2mv"2 v"2= 2gh v"2=2x10,x12 v=15.5

Math
How do i solve for b. 5=2pi/b  A sin B (x + C) d How do i find each letter?

Math
How do i find out the sin and cos equation of a sinusoidal graph? 
Math
How do i find "d" and "c" values in y=cos(x+(pi/2)) Base equation is y= A cos B (x + C) + D  Yes unclear

Math
How do i find the asymptotes of: y=(1/x4)+3  Mass=moles/atomic mass of fe2o3

Math
How do i find asymptotes without graphing? 
Physics
How much heat is absorved when a temparature of a piece of iron of mass 0.1kg and specific heat capacity 2*10 rest to power of 2 J/kg/k is rise from 25degree celcius to 75degree celcius 
physics
A stone of mass 0.7kg is projected vertically upward with a speed of 5m/s.calculate the maximum height reached. [Take g=10m/s^2 and neglect air resistance]. "  SAMUEL
 these are correct

COMPUTERS
CALCULATE THE AREA OF CIRCLE OF RADIUS 2CM USING FORTRAN PROGRAMMING LANGUAGE 
Science
A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol 
Chemistry
A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol 
calculus
Find the minimum distance between the curves y=e^x and y=lnx. Hint: Use the fact that e^x and lnx are inverse relationships. I have no idea where to start. Thanks! 
math
The perimeter of a rectangular concrete patio is 38 meters. The area is 90 square meters. What are the dimensions of the patio?